Lindsay Lohan's The Canyons co-star James Deen has admitted that the actress was often difficult to work with.

The porn actor - who plays Lohan's jealous and abusive boyfriend in the Bret Easton Ellis film - said that the troubled actress has "a unique way of communicating", which often caused frustration among the cast.

"She's a child star who's been living in this fame world being chased by paparazzi," Deen toldThe Daily Beast.

"I tried to consider that in every interaction with her, so when she speaks, what could be construed as an insult by some was not necessarily intended to be an insult. It was just her communicating her interpretation of the scene.

"You've got to remember that for the past ten years, Lindsay could not go to Starbucks," he explained.

"She was raised in the Hollywood system, so she's used to a certain level of treatment. Instead of saying, 'Excuse me, could you please pass me the water?' she's used to saying, 'I need water', and then someone just giving her water.

"She's been conditioned to say what she needs and then someone will bring it to her," Deen added, "so I can see why people would consider her to be a train wreck or a bitch or whatever, but her intentions are fine."

The actor also said that despite her directness, Lohan suddenly became very self-conscious when it came to shooting the film's sex scenes.

"We were all hanging out, joking around... and Lindsay was half-naked," he said.

"All of a sudden [she] was like, 'Could you guys put your clothes back on? I'm feeling really uncomfortable'... So we put our robes back on, but she was still lying on the bed topless.

"We were like, 'Well, what about you?' And she was like, 'No! I can be naked, but you can't be!'

"Lindsay needs to be the star," Deen explained. "She felt like she needed to throw some drama in there and bring attention back to her... She needed people to home in on the fact that this [was] a big deal to her.

"But, it was in her mind because everyone else on set was like, "We've seen you in Playboy, we've seen crotch shots all over the Internet, so this is nothing new."